ONCE again, inventor James Dyson has reinvented a machine we never knew needed reinventing. After vacuum cleaners and hand dryers, his latest target is the desktop fan.
“Conventional three-bladed fans chop at the air and fire chunks of it at you, like wedges of cheese,” Dyson says. “Plus, they can be dangerous if children’s fingers get in the grille – and they are tough to clean.”
His answer is a fan with no visible blades that he calls the Air Multiplier. Its key component is a hollow plastic hoop with an aerofoil cross section – like an aircraft wing bent into…
